Tekla Structures: Phases and Phase Management

sorry if my question are stupid and you already have videos on it.

1. i have no experience in tekla, but willing to learn it
2. phases looks very similar to tags in sketchup, is there a reason why you did not mention it in a whole video? couse i came here from SU (aaron mentioned tekla in one of streams)
3. what is a difference between object and component?

if there is a video or article about teklas geometry, please tell me.

how do you create reports from phase lists?

at inquiring parts we have in the upper part of the report Assembly phase and Part phase, what is part phase for? I mean, you can not bring that information to any report o template. Tekla shouldn't admit different phase for part and assembly